package com.xizi.hashmap;

public class test {
    public static void main(String[] args) {

//        HashMap<Integer, Integer> map = new HashMap<>();
//        System.out.println(map.put(10,10));;
//        System.out.println(map.put(10,10));;
//        System.out.println(map.put(10,10));;
//        System.out.println(map.put(10,10));;
//        System.out.println(map.put(10,10));;
//        System.out.println(map.put(12,10));;
        int a = 1;
        int b = 1;
        int c = a + b;
//        System.out.println(c);
//        synchronized (new Object()){
//
//        }
    }
}
